<!DOCTYPE html>
<html lang="zh_CN">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="./iconfont.css">
    <title>Document</title>
    <style>
        #Third::before{
            content: '\e633';
            font-family: 'iconfont';
            font-size: 30px;
        }
    </style>
</head>
<body>
    <i class="iconfont" style="color: orange;font-size: 20px;">&#xe635;</i>
    <i class="iconfont icon-icon-test3" style="color: skyblue;font-size: 21px;"></i>
    <i id="Third">我</i>
</body>
</html>